The CHARMM package is updated every half year. The following corrections are announced during the development period and incorporated into the next release version.
| Version | ID | Contents | Platforms |
| c31a1 | p030816 | 16-Aug-2003 source/io/parmio.src fix variable name and add PSDN4 calls |
All parallel |
| c31a2 | p040216 | 16-Feb-2004 machine specific fixes for INTEGER*1 and the FLOOR function |
HPUX SUN |
| p040217 | 17-Feb-2004 Obsolete gbor call removed |
All parallel | |
| p040223 | 23-Feb-2004 VIBBLOCK/PARALLEL code fix |
All parallel | |
| c32b2 | p060222 | 22-Feb-2006 CHARMM/GAMESS patches |
All |